Nitrous Express 63541-00 Covert Crossbar Plate System - 4150 100-500HP

The Nitrous Express 63541-00 Covert Crossbar Plate System is a high-performance nitrous oxide injection system designed for 4150-style carburetors. This Pro Power plate system delivers adjustable power gains from 100 to 500 horsepower, making it ideal for street/strip applications and serious performance enthusiasts.

Key Features:

• Covert crossbar plate design installs between carburetor and intake manifold
• Compatible with 4150-style Holley carburetors and equivalents
• Adjustable power range from 100 to 500 horsepower
• Pro Power series features precision-machined aluminum construction
• Includes all necessary solenoids, lines, and jetting for complete installation
• Direct-port style distribution for even cylinder-to-cylinder delivery
• Engineered for maximum power with reliable performance

This system includes all mounting hardware and components except the nitrous bottle. The crossbar plate design provides a stealthy installation that maintains the stock appearance of your engine bay while delivering serious power gains at the touch of a button. Perfect for racers and enthusiasts who demand consistent, reliable nitrous delivery.